What does a guy mean when says, "we'll wait and see"?

I am about to lose my mind over this guy. I was extremely attracted to him and he smiled and stared at me all the time, but I got really drunk around him and he ended up saying to his friends he thought I was crazy. But he told me to keep his number when I move and said "we'll wait and see" when I asked him if he'd ever wonder "what if" when I move...